there are no conditions that would survive from an evolutionary perspective that severely disabled young people before having children. you should not be hearing about young adults and teenagers having strokes and heart attacks.

a common statement in infectious disease: "if something is highly infectious and not lethal it spreads far but highly lethal and infectious won't spread" ask yourself: if something kills a host very quickly and people learn to avoid that sick person so they don't immediately die, how does the "virus" continue to exist?

the best peer review is scientific experiment replication. if different groups do the same experiment over and over and get the same result there is no need for peer review. replication is the only valid peer review.